"It is recommended that, when possible, you avoid strenuous outdoor activities, especially those with heart disease and ...

Officials warn southeast Michigan residents to be careful outdoors Tuesday because of expected high ozone pollution levels.

Besides temperatures feeling in the high 90s, Chicago and surrounding areas are under an air quality alert until midnight, ...

Environment Canada is warning of poor air quality and extreme heat in Toronto on Monday as southern Ontario braces for a week ...

A special weather statement and warning have been issued for southern Ontario on Wednesday. The heat warning continues with temperature highs around 32 C or 40 C with the humidex in the Greater ...